Kullman Leif, Al-Asfour Adel, Zetterqvist Lars, Andersson Lars
Oral and Maxillofacial Radiology, Department of Diagnostic Sciences, Faculty of Dentistry, Kuwait University, Kuwait.
Int J Oral Maxillofac Implants. 2007 Jan-Feb;22(1):96-100.
To compare the ability of 2 radiographic methods, intraoral and panoramic radiography, commonly used in private practices following implant treatment to provide reliable information about the level of peri-implant marginal bone. An additional aim was to compare the inter- and intraobserver reliability.
Patients with implants placed in the mandible in 10 private practices were studied retrospectively. Postoperative intraoral and panoramic radiographs were evaluated at a university oral radiology clinic. Two observers, a specialist in oral and maxillofacial radiology and a specialist in oral and maxillofacial surgery, assessed the bone level, and the thread at which the marginal bone seemed to be attached was registered for the distal and mesial surfaces of all implants at 2 assessments several weeks apart. Kappa statistics was used to compare the agreement between assessments, observers, and methods of radiography.
Intraobserver agreement was good or very good, while interobserver agreement was predominantly moderate. The agreement rate between the methods was also moderate. Seven percent of the sites were not possible to assess, with a small difference in favor for panoramic radiographs. In the assessment of the panoramic radiographs, the radiologist found more sites too difficult to assess than the surgeon did.
In this study, panoramic radiographs were found to be as reliable as conventional intraoral radiographs when used to assess the point of bone attachment to implant threads. Intra- and interobserver agreement were reliable but not excellent. The radiologist was more successful in finding sites where the bone level was impossible to assess accurately.
比较口腔内摄影和全景摄影这两种在私人诊所种植治疗后常用的影像学方法，提供种植体周围边缘骨水平可靠信息的能力。另一个目的是比较观察者间和观察者内的可靠性。
对10家私人诊所下颌植入种植体的患者进行回顾性研究。术后口腔内和全景X线片在大学口腔放射科诊所进行评估。两名观察者，一名口腔颌面放射科专家和一名口腔颌面外科专家，评估骨水平，并记录在相隔几周的两次评估中所有种植体远中面和近中面边缘骨似乎附着的螺纹。采用Kappa统计量比较评估、观察者和影像学方法之间的一致性。
观察者内一致性良好或非常好，而观察者间一致性主要为中等。两种方法之间的一致率也为中等。7%的部位无法评估，全景X线片略占优势。在全景X线片评估中，放射科医生发现比外科医生更多难以评估的部位。
在本研究中，当用于评估骨与种植体螺纹的附着点时，发现全景X线片与传统口腔内X线片一样可靠。观察者内和观察者间一致性可靠但不完美。放射科医生在发现难以准确评估骨水平的部位方面更成功。
